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Federal Highway Administration > Publications > Public Roads > Vol. 67 · No. 1 > Common Outdoor and Indoor Noises

July/August 2003
Vol. 67 · No. 1

Common Outdoor and Indoor Noises

Outdoor Noises Sound Pressures (uPa)
Jet Flyover at 300 m 6,324,555
Gas Lawn Mower at 1 m 2,000,000
Diesel Truck at 15 632, 456
Noisy Urban Daytime 200,000
Gas Lawn Mower at 30 m 63,246
Commercial Area 20,000
Quiet Urban Daytime 6,325
Quiet Urban Nighttime 2,000
Quiet Suburban Nighttime 632
Quiet Rural Nighttime 200

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Indoor Noises Sound Pressure Levels (dB)

Rock Band at 5 am

110
Inside Subway Train (New York)
100

Food Blender at 1 m

90

Garbage Disposal at 1 m
Shouting at 1 m

80

Vacumm Cleaner at 3 m

70

Normal Speech at 1 m

70

Large Business Office

60

Dishwasher Next Room

50

Small Theatre, Large Conference Room (Background)/Library

40

Bedroom at Night/Concert Hall

25

Broadcast and Recording Studio

15

Theshold of Hearing

5

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